:root{
    --navy:#13243B; --navy2:#1B3050; --blue:#1F4E79; --steel:#356199;
    --amber:#E08A12; --amber-d:#C97A12;
    --ink:#1B2433; --muted:#5E6B7B; --line:#E3E9F0; --panel:#F4F7FB; --white:#FFFFFF; --ice:#BFD4EC;
    --maxw:1180px;
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);line-height:1.6;background:var(--white);-webkit-font-smoothing:antialiased}
  h1,h2,h3{line-height:1.15;letter-spacing:-0.01em}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
  .btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:13px 24px;border-radius:9px;cursor:pointer;border:none;transition:.15s;white-space:nowrap}
  .btn-amber{background:var(--amber);color:#fff}
  .btn-amber:hover{background:var(--amber-d)}
  .btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.35)}
  .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
  .btn-dark{background:var(--navy);color:#fff}
  .btn-dark:hover{background:var(--navy2)}
  .eyebrow{font-size:13px;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--amber-d)}

  /* HEADER */
  header{position:sticky;top:0;z-index:50;background:rgba(19,36,59,.96);backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.08)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:68px}
  .logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:24px;letter-spacing:-.02em}
  .logo .dot{width:11px;height:11px;border-radius:50%;background:var(--amber)}
  .nav-links{display:flex;align-items:center;gap:28px;list-style:none}
  .nav-links a{color:#cdd8e6;font-size:15px;font-weight:500}
  .nav-links a:hover{color:#fff}
  .nav-cta{display:flex;align-items:center;gap:14px}
  .nav-cta .login{color:#cdd8e6;font-size:15px;font-weight:600}
  .burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px}
  .burger span{width:24px;height:2px;background:#fff;display:block}

  /* HERO */
  .hero{position:relative;background:radial-gradient(1100px 520px at 80% -10%,#26456e 0%,var(--navy) 55%);color:#fff;overflow:hidden}
  .hero::after{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;background:var(--blue);transform:rotate(35deg);opacity:.35}
  .hero::before{content:"";position:absolute;right:60px;bottom:-160px;width:300px;height:300px;background:var(--amber);transform:rotate(35deg);opacity:.18}
  .hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:78px 0 86px}
  .hero h1{font-size:54px;font-weight:800;margin-bottom:20px}
  .hero h1 .hl{color:var(--amber)}
  .hero p.lead{font-size:20px;color:var(--ice);max-width:560px;margin-bottom:30px}
  .hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
  .enc{font-size:13px;color:#8fa6c4;display:flex;align-items:center;gap:8px}
  .hero-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:26px}
  .hero-card h3{font-size:16px;color:#fff;margin-bottom:16px;font-weight:700}
  .drop{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;border:1.5px dashed rgba(255,255,255,.3);border-radius:12px;padding:28px 18px;color:#bcccdf;cursor:pointer;transition:.15s;font-size:14px;line-height:1.45}
  .drop:hover{border-color:var(--amber);background:rgba(224,138,18,.06)}
  .drop svg{margin-bottom:8px}
  .drop b{color:#fff}
  .hero-mini{display:flex;gap:10px;margin-top:16px}
  .hero-mini div{flex:1;background:rgba(255,255,255,.05);border-radius:9px;padding:11px;text-align:center}
  .hero-mini .n{font-size:19px;font-weight:800;color:var(--amber)}
  .hero-mini .l{font-size:11px;color:#aebfd4}

  /* TRUST STRIP */
  .trust{background:var(--navy2);color:#cdd8e6;border-top:1px solid rgba(255,255,255,.07)}
  .trust .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 24px;flex-wrap:wrap;font-size:14px;font-weight:600}
  .trust .item{display:flex;align-items:center;gap:9px}
  .trust .star{color:var(--amber)}

  /* SECTION */
  section.sec{padding:84px 0}
  .sec-head{text-align:center;max-width:680px;margin:0 auto 50px}
  .sec-head h2{font-size:38px;font-weight:800;margin:12px 0 14px;color:var(--navy)}
  .sec-head p{font-size:18px;color:var(--muted)}

  /* SERVICES */
  .cards{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
  .card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 24px;transition:.18s}
  .card:hover{box-shadow:0 14px 34px rgba(19,36,59,.10);transform:translateY(-3px)}
  .ico{width:52px;height:52px;border-radius:12px;background:var(--panel);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
  .ico svg{width:28px;height:28px;stroke:var(--blue)}
  .card h3{font-size:18px;color:var(--navy);margin-bottom:8px}
  .card p{font-size:14.5px;color:var(--muted)}

  /* PROCESS */
  .process{background:var(--panel)}
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
  .step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px 22px;position:relative}
  .step .num{width:42px;height:42px;border-radius:50%;background:var(--navy);color:#fff;font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
  .step:nth-child(3) .num{background:var(--amber)}
  .step h3{font-size:16.5px;color:var(--navy);margin-bottom:7px}
  .step p{font-size:14px;color:var(--muted)}

  /* MATERIALS */
  .tabs{display:flex;gap:10px;justify-content:center;margin-bottom:30px}
  .tab{padding:10px 22px;border-radius:30px;border:1.5px solid var(--line);background:#fff;font-weight:700;font-size:14px;color:var(--muted);cursor:pointer}
  .tab.active{background:var(--navy);color:#fff;border-color:var(--navy)}
  .mat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
  .mat{background:#fff;border:1px solid var(--line);border-radius:11px;padding:18px 20px;display:flex;align-items:center;gap:14px}
  .mat .sw{width:34px;height:34px;border-radius:8px;flex-shrink:0}
  .mat b{display:block;color:var(--navy);font-size:15px}
  .mat span{font-size:12.5px;color:var(--muted)}
  .mat-pane{display:none}
  .mat-pane.active{display:block}
  /* FINITURE */
  .fin-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
  .fin{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.18s}
  .fin:hover{box-shadow:0 12px 30px rgba(19,36,59,.10);transform:translateY(-3px)}
  .fin .sw{height:92px;border-bottom:1px solid var(--line)}
  .fin .tx{padding:16px 18px 18px}
  .fin h3{font-size:15.5px;color:var(--navy);margin-bottom:6px}
  .fin p{font-size:13px;color:var(--muted)}
  /* COSTI */
  .cost-formula{background:var(--navy);color:#fff;border-radius:16px;padding:30px 26px;text-align:center;margin-bottom:42px}
  .cost-formula .f{font-size:17px;font-weight:700;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:center}
  .cost-formula .chip{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:8px 14px}
  .cost-formula .op{color:var(--amber);font-size:20px;font-weight:800}
  .cost-formula .res{background:var(--amber);color:#fff;border-color:var(--amber)}
  .cost-formula .eg{color:var(--ice);font-size:14px;margin-top:18px}
  .dgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  .cost-tips{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:26px 30px;margin-top:38px}
  .cost-tips h3{color:var(--navy);font-size:18px;margin-bottom:14px}
  .cost-tips ul{list-style:none}
  .cost-tips li{display:flex;gap:10px;margin-bottom:10px;font-size:15px;color:var(--ink)}
  .cost-tips .ck{color:var(--amber-d);font-weight:800;flex-shrink:0}
  /* STIMA RAPIDA */
  .estimate{border-top:1px solid rgba(255,255,255,.08);padding:14px 16px}
  .est-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
  .est-row select,.est-row input{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);color:#fff;border-radius:8px;padding:8px 10px;font-size:13px;font-family:inherit}
  .est-row input{width:78px}
  .est-row .est-go{background:var(--amber);color:#fff;border:none;border-radius:8px;padding:9px 16px;font-weight:700;cursor:pointer;font-size:13px}
  .est-out{margin-top:12px;color:#dce6f2;font-size:13.5px;line-height:1.55}
  .est-out b{color:var(--amber)}
  .est-out .dis{color:#8fa6c4;font-size:11.5px;display:block;margin-top:7px}

  /* WHY (dark) */
  .why{background:var(--navy);color:#fff}
  .why .sec-head h2{color:#fff}
  .why .sec-head p{color:var(--ice)}
  .why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  .why-item{display:flex;gap:18px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:26px}
  .why-item .ico{background:rgba(224,138,18,.15)}
  .why-item .ico svg{stroke:var(--amber)}
  .why-item h3{font-size:18px;margin-bottom:6px}
  .why-item p{font-size:15px;color:#b9c8db}

  /* NUMBERS */
  .numbers{background:var(--amber)}
  .numbers .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:48px 24px;text-align:center}
  .numbers .n{font-size:46px;font-weight:800;color:var(--navy)}
  .numbers .l{font-size:15px;font-weight:600;color:#5a3c08}
  /* MAP */
  .map-sec{background:var(--navy);color:#fff}
  .map-sec .sec-head h2{color:#fff}
  .map-sec .sec-head p{color:var(--ice)}
  .map-wrap{max-width:920px;margin:0 auto;border:1px solid rgba(255,255,255,.1);border-radius:16px;background:linear-gradient(180deg,rgba(22,41,68,.5),rgba(13,26,46,.5));overflow:hidden}
  .map-wrap svg{display:block;width:100%;height:auto}
  .route{fill:none;stroke-width:2;stroke-dasharray:5 9;opacity:.55;animation:flow 1.4s linear infinite}
  .route-n{stroke:#E08A12}
  .route-s{stroke:#7DA7D9}
  @keyframes flow{to{stroke-dashoffset:-28}}
  .hub-ring{fill:none;stroke-width:2;transform-box:fill-box;transform-origin:center;animation:pulsering 2.2s ease-out infinite}
  .ring-a{stroke:#E08A12}
  .ring-b{stroke:#7DA7D9}
  @keyframes pulsering{0%{transform:scale(.5);opacity:.9}100%{transform:scale(2.6);opacity:0}}
  .nodedot{animation:blink 2.6s ease-in-out infinite}
  @keyframes blink{0%,100%{opacity:.55}50%{opacity:1}}
  .map-lbl{fill:#dce6f2;font-size:14px;font-weight:600;font-family:inherit;paint-order:stroke;stroke:#10203a;stroke-width:3px;stroke-linejoin:round}
  .hub-lbl{fill:#fff;font-size:16px;font-weight:800;font-family:inherit;paint-order:stroke;stroke:#10203a;stroke-width:3.5px;stroke-linejoin:round}
  .hub-sub{fill:#aebfd4;font-size:12px;font-weight:600;font-family:inherit;paint-order:stroke;stroke:#10203a;stroke-width:2.5px;stroke-linejoin:round}
  .maplegend{display:flex;justify-content:center;gap:30px;margin-top:24px;flex-wrap:wrap}
  .maplegend span{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--ice);font-weight:600}
  .maplegend i{width:22px;height:4px;border-radius:2px;display:inline-block}
  .map-stats{display:flex;justify-content:center;gap:48px;margin-top:26px;flex-wrap:wrap}
  .map-stats div{text-align:center}
  .map-stats .n{font-size:23px;font-weight:800;color:var(--amber)}
  .map-stats .l{font-size:13.5px;color:var(--ice)}

  /* QUOTE */
  .quote{background:var(--panel)}
  .qgrid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
  .qgrid h2{font-size:36px;color:var(--navy);margin-bottom:14px;font-weight:800}
  .qgrid p{font-size:17px;color:var(--muted);margin-bottom:22px}
  .qlist{list-style:none}
  .qlist li{display:flex;gap:12px;margin-bottom:14px;font-size:15.5px}
  .qlist .ck{color:var(--amber-d);font-weight:800}
  form.qform{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px}
  form.qform label{display:block;font-size:13px;font-weight:700;color:var(--navy);margin:0 0 6px}
  form.qform input,form.qform textarea{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:9px;font-size:15px;font-family:inherit;margin-bottom:16px}
  form.qform input:focus,form.qform textarea:focus{outline:none;border-color:var(--blue)}
  .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .filedrop{border:1.5px dashed var(--line);border-radius:10px;padding:18px;text-align:center;color:var(--muted);font-size:14px;cursor:pointer;margin-bottom:18px}
  .filedrop:hover{border-color:var(--amber)}
  .ok{display:none;background:#E8F5E9;border:1px solid #b5dcb8;color:#1f6b2b;border-radius:9px;padding:14px;font-size:14.5px;font-weight:600;margin-top:6px}
  .filebadge{font-size:13.5px;color:var(--muted);margin-bottom:16px}
  .filebadge b{color:var(--navy)}
  /* 3D VIEWER */
  .viewer-card{background:var(--navy);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 14px 34px rgba(19,36,59,.12)}
  .viewer-top{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;color:#cdd8e6;font-size:13.5px;font-weight:600;border-bottom:1px solid rgba(255,255,255,.08);gap:10px}
  #viewer-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .viewer-tools{display:flex;gap:8px;flex-shrink:0}
  .viewer-tools button{width:32px;height:32px;border-radius:7px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.05);color:#cdd8e6;cursor:pointer;font-size:15px;line-height:1}
  .viewer-tools button:hover,.viewer-tools button.on{background:var(--amber);color:#fff;border-color:var(--amber)}
  .viewer-canvas{position:relative;width:100%;height:400px;background:linear-gradient(180deg,#1f3656,#0d1a2c)}
  .viewer-canvas canvas{display:block;width:100%;height:100%}
  .viewer-drop{padding:14px;text-align:center;font-size:13px;color:#aebfd4;cursor:pointer;border-top:1px solid rgba(255,255,255,.08)}
  .viewer-drop:hover{background:rgba(224,138,18,.08)}
  .viewer-drop b{color:#fff}
  .viewer-loading{position:absolute;inset:0;z-index:5;display:none;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:rgba(11,22,38,.80);backdrop-filter:blur(2px);color:#dce6f2;font-size:14px;font-weight:600;letter-spacing:.01em}
  .viewer-loading.show{display:flex}
  .spinner{width:46px;height:46px;border-radius:50%;border:4px solid rgba(255,255,255,.16);border-top-color:var(--amber);animation:spin .8s linear infinite}
  .viewer-loading small{font-size:12px;color:#9db0c8;font-weight:500}
  @keyframes spin{to{transform:rotate(360deg)}}

  /* FAQ */
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-q{width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:20px 0;font-size:17px;font-weight:700;color:var(--navy);display:flex;justify-content:space-between;align-items:center;gap:16px}
  .faq-q .pl{color:var(--amber);font-size:22px;flex-shrink:0;transition:.2s}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease;color:var(--muted);font-size:15.5px}
  .faq-a div{padding:0 0 20px}
  .faq-item.open .pl{transform:rotate(45deg)}

  /* FOOTER */
  footer{background:var(--navy);color:#9fb1c7;padding:60px 0 28px;font-size:14.5px}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
  footer h4{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:16px}
  footer ul{list-style:none}
  footer li{margin-bottom:10px}
  footer a:hover{color:#fff}
  .foot-logo{color:#fff;font-weight:800;font-size:24px;display:flex;align-items:center;gap:9px;margin-bottom:12px}
  .foot-bot{display:flex;justify-content:space-between;padding-top:22px;flex-wrap:wrap;gap:12px;font-size:13px;color:#7e92ab}

  @media(max-width:900px){
    .hero-grid,.qgrid{grid-template-columns:1fr;gap:34px}
    .cards,.steps,.mat-grid,.fin-grid,.dgrid,.cmp-dec,.why-grid,.numbers .wrap,.foot-grid{grid-template-columns:repeat(2,1fr)}
    .hero h1{font-size:40px}
    .nav-links{display:none}
    .burger{display:flex}
    .nav-links.show{display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;background:var(--navy2);padding:18px 24px;gap:16px}
    .row2{grid-template-columns:1fr}
  }
  @media(max-width:560px){
    .cards,.steps,.mat-grid,.fin-grid,.dgrid,.cmp-dec,.why-grid,.numbers .wrap,.foot-grid{grid-template-columns:1fr}
    .hero h1{font-size:33px}
    .sec-head h2{font-size:29px}
  }
  .langsel{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.22);border-radius:8px;padding:7px 8px;font-size:13px;font-weight:600;font-family:inherit;cursor:pointer}
  .langsel option{color:#111}
  /* CONFRONTO */
  .cmp{overflow-x:auto;border:1px solid var(--line);border-radius:12px}
  .cmp table{width:100%;border-collapse:collapse;min-width:580px}
  .cmp th,.cmp td{padding:13px 16px;border-bottom:1px solid var(--line);text-align:left;font-size:14.5px;color:var(--ink)}
  .cmp thead th{background:var(--navy);color:#fff;font-weight:700;font-size:13.5px}
  .cmp thead th.cmp-hl{background:var(--amber)}
  .cmp tbody tr:last-child td{border-bottom:none}
  .cmp td.c{text-align:center;font-size:18px;width:130px}
  .cmp .cy{color:#1f9d55}.cmp .cw{color:#E08A12}.cmp .cn{color:#c0392b}
  .cmp-leg{text-align:center;color:var(--muted);font-size:13px;margin-top:14px}
  .cmp-dec{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:34px}
  .cmp-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 26px}
  .cmp-card.t{border-top:3px solid var(--amber)}
  .cmp-card h3{color:var(--navy);font-size:17px;margin-bottom:14px}
  .cmp-card ul{list-style:none}
  .cmp-card li{position:relative;padding-left:24px;margin-bottom:10px;font-size:14.5px;color:var(--ink)}
  .cmp-card li::before{content:"\2713";position:absolute;left:0;color:var(--amber-d);font-weight:800}
  .cmp-disc{color:var(--muted);font-size:12.5px;line-height:1.5;margin-top:26px;text-align:center;max-width:760px;margin-left:auto;margin-right:auto}
  /* NAV DROPDOWN */
  .logo{margin-right:14px}
  .has-drop{position:relative;display:flex;align-items:center;gap:3px}
  .drop-toggle{cursor:pointer}
  .caret{color:#9fb3cc;font-size:11px;cursor:pointer}
  .drop-menu{list-style:none;position:absolute;top:100%;left:50%;transform:translateX(-50%);margin-top:8px;background:var(--navy2);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:8px;min-width:190px;display:none;flex-direction:column;gap:2px;box-shadow:0 16px 40px rgba(0,0,0,.32);z-index:60}
  
  .drop-menu::before{content:"";position:absolute;top:-8px;left:0;right:0;height:8px}
  .drop-menu li a{display:block;padding:9px 12px;border-radius:7px;font-size:14px;color:#cdd8e6;white-space:nowrap}
  .drop-menu li a:hover{background:rgba(255,255,255,.08);color:#fff}
  @media(max-width:900px){
    .nav-links.show .has-drop{flex-direction:column;align-items:flex-start;gap:0;width:100%}
    .nav-links.show .caret{display:none}
    .nav-links.show .drop-menu{display:flex;position:static;transform:none;margin:6px 0 0 12px;background:transparent;border:none;box-shadow:none;padding:0;min-width:auto}
    .nav-links.show .drop-menu li a{padding:7px 0;color:#aebfce}
  }
  /* R&D */
  .rnd{background:var(--navy);color:#fff}
  .rnd .sec-head h2{color:#fff}.rnd .sec-head p{color:var(--ice)}
  .rnd-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:40px}
  .rnd-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:24px}
  .rnd-card .ico{width:48px;height:48px;border-radius:11px;background:rgba(224,138,18,.16);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
  .rnd-card .ico svg{width:26px;height:26px;stroke:var(--amber);fill:none;stroke-width:1.7}
  .rnd-card h3{font-size:17px;margin-bottom:7px}
  .rnd-card p{font-size:14px;color:#b9c8db}
  .fem-title,.rnd-example-kicker{font-size:12.5px;font-weight:700;color:var(--amber);letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}
  .rnd-example{scroll-margin-top:90px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:28px;margin-bottom:42px}
  .rnd-example-head{max-width:760px;margin-bottom:26px}
  .rnd-example h3{color:#fff;font-size:28px;line-height:1.25;margin-bottom:12px}
  .rnd-example-head p{color:#c1cddd;font-size:15px;line-height:1.65}
  .rnd-comparison{display:grid;grid-template-columns:1fr 1fr;gap:20px}
  .rnd-comparison-card{min-width:0;margin:0;border:1px solid #425774;border-radius:12px;overflow:hidden;background:#14253f}
  .rnd-comparison-card figcaption{padding:20px 20px 0}
  .rnd-phase{display:inline-block;color:#f5c782;font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:.12em;margin-bottom:6px}
  .rnd-after .rnd-phase{color:#93ead6}
  .rnd-comparison-card h4{font-size:18px;color:#fff;line-height:1.35}
  .rnd-drawing svg,.rnd-drawing img{display:block;width:100%;height:auto;max-height:360px;font:16px system-ui,sans-serif}
  .rnd-robot-context{display:grid;grid-template-columns:minmax(240px,.9fr) 1.1fr;align-items:center;gap:24px;margin:0 0 24px;padding:18px;background:#14253f;border:1px solid #425774;border-radius:12px}
  .rnd-robot-context svg{display:block;width:100%;max-width:380px;height:auto;margin:auto}
  .rnd-robot-context h4{color:#fff;font-size:18px;margin-bottom:10px}
  .rnd-robot-context p{color:#c1cddd;font-size:14px;line-height:1.6}
  .rnd-stress-scale{max-width:640px;margin:20px 0;color:#c1cddd;font-size:13px}
  .rnd-stress-scale h4{font-size:14px;color:#e7effa;margin-bottom:10px}
  .rnd-scale-bar{height:12px;border-radius:4px;background:linear-gradient(90deg,#244da6,#1e9dc7,#3ac19f,#f2d15c,#e55c47)}
  .rnd-scale-values{display:flex;justify-content:space-between;margin-top:4px;font-variant-numeric:tabular-nums}
  .rnd-stress-scale p{margin-top:10px;line-height:1.55}
  .rnd-method{color:#b9c8db;font-size:13px;line-height:1.65;margin-top:18px}
  .rnd-method summary{cursor:pointer;color:#e7effa;font-weight:600}
  .rnd-method p{margin-top:12px}
  .rnd-method a{display:inline-block;margin-top:8px}
  .rnd-diagram-caption{padding:0 20px 22px;color:#c1cddd;font-size:14px;line-height:1.6}
  .rnd-reading-key{display:flex;flex-wrap:wrap;gap:12px 28px;margin:22px 0 16px;color:#dce7f5;font-size:13px}
  .rnd-reading-key>span{display:flex;align-items:center;gap:8px}
  .rnd-reading-key svg{width:20px;height:20px;flex:none}
  .rnd-example-note{color:#b9c8db;font-size:13px;line-height:1.65;padding-top:16px;border-top:1px solid #425774}
  .rnd-steps{display:flex;justify-content:space-between;gap:8px;position:relative}
  .rnd-steps::before{content:"";position:absolute;top:22px;left:7%;right:7%;height:2px;background:rgba(255,255,255,.15)}
  .rnd-step{flex:1;text-align:center;position:relative;z-index:1;min-width:120px}
  .rnd-step .n{width:44px;height:44px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 10px}
  .rnd-step:nth-child(3) .n{background:var(--amber)}
  .rnd-step span{font-size:13px;color:#cdd8e6;display:block;padding:0 4px}
  @media(max-width:900px){
    .rnd-grid{grid-template-columns:repeat(2,1fr)}
    .rnd-comparison,.rnd-robot-context{grid-template-columns:1fr}
    .rnd-steps{flex-wrap:wrap;gap:18px}.rnd-steps::before{display:none}.rnd-step{min-width:40%}
  }
  @media(max-width:560px){.rnd-grid{grid-template-columns:1fr}.rnd-step{min-width:45%}}

/* Local maintenance: preserve layout while fixing keyboard and narrow screens. */
:focus-visible{outline:3px solid var(--amber);outline-offset:4px}
section[id],#top,#main{scroll-margin-top:90px}
.hero-grid{padding-left:24px;padding-right:24px}
.hero-grid>*,.qgrid>*,.nav>*{min-width:0}
.drop-toggle{font:inherit;color:#cdd8e6;border:0;background:none;display:flex;gap:5px;align-items:center;padding:8px 0}
.has-drop.expanded .drop-menu{display:flex}
.skip-link{position:fixed;top:8px;left:8px;z-index:100;background:#fff;color:var(--navy);padding:10px 16px;transform:translateY(-160%)}
.skip-link:focus{transform:none}
.faq-a[hidden]{display:none}
.faq-item.open .faq-a{max-height:none}
.tabs{flex-wrap:wrap}
.local-notice{padding:12px 14px;border-left:3px solid var(--amber);background:var(--panel);font-size:14px!important;color:var(--ink)!important}
.viewer-note{color:#b9c8db;font-size:12px;line-height:1.5;margin-bottom:12px}
.viewer-drop,.drop{touch-action:manipulation}
.viewer-tools button,.burger{min-width:44px;min-height:44px}
.viewer-tools{gap:4px}
.est-row select{max-width:100%;min-width:0}
.est-row select option{color:#13243B;background:#fff}
#formfile{overflow-wrap:anywhere}
.ok{background:#edf3fb;color:var(--navy);border-color:#c6d5e7}
@media(max-width:1160px){
 .nav-links{display:none}.burger{display:flex;justify-content:center;padding:8px}
 .nav-cta .login{display:none}
 .nav-links.show{display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:flex-start;background:var(--navy2);padding:18px 24px;gap:12px;max-height:calc(100dvh - 68px);overflow-y:auto}
 .nav-links.show .has-drop{flex-direction:column;align-items:flex-start;width:100%}
 .nav-links.show .drop-menu{display:flex;position:static;transform:none;margin:4px 0 0 12px;background:transparent;border:none;box-shadow:none;padding:0}
}
@media(max-width:600px){
 .nav-cta>.btn{display:none}.nav-cta{gap:8px}
 .wrap{padding-left:20px;padding-right:20px}
 .hero-grid{padding:48px 20px}.hero-card{padding:18px}
 .hero p.lead{font-size:18px}
 .qgrid{gap:24px}.qgrid h2{font-size:29px}
 form.qform{padding:20px}.viewer-top{padding:10px;flex-wrap:wrap}
 #viewer-name{flex-basis:100%;font-size:12px}
 .viewer-canvas{height:300px}
 .est-row input,.est-row select{font-size:16px}
 section.sec{padding:60px 0}.sec-head{margin-bottom:32px}
 .hero-mini{gap:5px}.hero-mini div{padding:8px 4px}
 .hero-cta .btn{white-space:normal}
 .rnd-example{padding:18px 12px}.rnd-example h3{font-size:24px}
 .rnd-comparison-card figcaption{padding:16px 14px 0}.rnd-diagram-caption{padding:0 14px 18px}
}
@media(prefers-reduced-motion:reduce){
 html{scroll-behavior:auto}
 *,*::before,*::after{animation:none!important;transition:none!important}
}
.btn-amber,.est-row .est-go,.viewer-tools button.on,.cost-formula .res{color:var(--navy)}
.sec .eyebrow{color:#9f5c06}
@media(max-width:560px){
 .cmp-dec{grid-template-columns:1fr}
 .cmp-card{min-width:0;overflow-wrap:anywhere}
 .btn{max-width:100%;white-space:normal;justify-content:center}
}
.qgrid .viewer-note{color:#b9c8db;font-size:12px;line-height:1.5;margin-bottom:12px}

/* Explicit cost scenarios, independent of the 3D display. */
.viewer-bottom{padding:14px 16px;border-top:1px solid rgba(255,255,255,.08)}
.viewer-bottom .viewer-note{margin-bottom:14px}
.estimate-panel{margin-top:36px;padding:28px;background:var(--navy);color:#dce6f2;border-radius:16px}
.estimate-panel h3{color:#fff;font-size:25px;margin-bottom:12px}
.estimate-panel h4{color:#fff;font-size:14px;margin:14px 0 8px}
.estimate-panel p{margin:0 0 12px}
.est-intro{font-size:14px;color:var(--ice);max-width:850px}
.est-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:28px;align-items:start;margin-top:22px}
.est-layout>*,.est-control-grid>*,.est-stock-grid>*{min-width:0}
.est-control-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.est-stock-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.est-field{display:flex;flex-direction:column;gap:6px;font-size:12px;font-weight:600;color:#dce6f2}
.est-field input,.est-field select{width:100%;min-height:44px;border:1px solid #64758d;border-radius:8px;padding:9px 10px;font:inherit;font-size:15px;color:#fff;background:#20344f}
.est-field select option{color:var(--navy);background:#fff}
.est-field [aria-invalid=true]{border:2px solid #ffc18c}
.estimate-panel fieldset{min-width:0;border:1px solid #53647e;border-radius:10px;padding:12px;margin:18px 0}
.estimate-panel legend{padding:0 6px;color:#fff;font-size:14px;font-weight:700}
.estimate-panel .est-help{font-size:12px;line-height:1.5;color:#b9c8db;margin-top:10px}
.est-text-button{background:none;border:0;color:#ffd49a;text-decoration:underline;text-underline-offset:3px;font:inherit;font-size:12px;padding:8px 0;cursor:pointer;min-height:36px;text-align:left}
.est-text-button:disabled{opacity:.5;cursor:default}
.est-results{padding:18px;background:#1b3050;border-radius:12px}
.est-results>h4:first-child{margin-top:0}
.est-facts{font-size:13px;line-height:1.6;color:#dce6f2;overflow-wrap:anywhere}
.est-out{background:#13243b;border-radius:8px;padding:14px;font-size:16px;font-weight:700;color:#ffd49a;overflow-wrap:anywhere}
.est-table-wrap{max-width:100%;overflow-x:auto}
.est-table{width:100%;border-collapse:collapse;margin-top:14px;font-size:13px;font-variant-numeric:tabular-nums}
.est-table caption{text-align:left;font-size:15px;font-weight:700;color:#fff;margin-bottom:8px}
.est-table th,.est-table td{padding:10px 6px;border-bottom:1px solid #53647e;text-align:right;vertical-align:top}
.est-table th:first-child{text-align:left;font-weight:500}
.est-table td{white-space:nowrap}
.est-table thead th{font-weight:700;color:#bfd4ec}
.est-table .cost-subtotal{font-weight:700}
.est-table .cost-total{font-weight:800;color:#ffd49a}
.estimate-panel .est-disclaimer{font-size:12px;line-height:1.6;color:#b9c8db;margin-top:16px}
.est-method{margin-top:24px;border-top:1px solid #53647e;padding-top:16px;font-size:13px;color:#dce6f2}
.est-method summary{cursor:pointer;font-weight:700;color:#fff;margin-bottom:12px;min-height:30px}
.est-method ul{margin:12px 0;padding-left:20px}.est-method li{margin:8px 0}
.est-source{color:#ffd49a;text-decoration:underline;text-underline-offset:3px}
#estimator,#viewer{scroll-margin-top:90px}
[hidden]{display:none!important}
@media(max-width:900px){.est-layout{grid-template-columns:1fr}.est-results{padding:16px}}
@media(max-width:560px){
 .estimate-panel{padding:18px 14px}.estimate-panel h3{font-size:22px}
 .est-control-grid{grid-template-columns:1fr}.est-field input,.est-field select{font-size:16px}
 .est-stock-grid{gap:6px}.est-stock-grid input{padding:8px 4px}
 .est-table{font-size:12px}.est-table td,.est-table th{padding:9px 4px}
 .est-table th:first-child{max-width:105px;overflow-wrap:anywhere}
}
.estimate-panel>.est-out{position:sticky;top:80px;z-index:4;margin-top:16px;box-shadow:0 4px 18px rgba(0,0,0,.2)}

/* Private quote submission */
.quote-fields{border:0;padding:0;margin:0;min-width:0}.quote-help{font-size:13px;line-height:1.6;color:var(--muted);overflow-wrap:anywhere}.quote-fields select{width:100%;padding:11px;border:1px solid #4c6179;border-radius:8px;background:#14263d;color:#eef2f7;font:inherit}.quote-fields input[type=file]{max-width:100%;padding:10px 0}.quote-files{list-style:none;padding:0;margin:12px 0}.quote-files li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid #40546d}.quote-files span{overflow-wrap:anywhere;min-width:0}.quote-files button{border:1px solid #6d829a;background:transparent;color:#c4d9ef;border-radius:6px;padding:7px 10px;cursor:pointer}.quote-ack{display:flex!important;align-items:flex-start;gap:10px;font-size:13px;line-height:1.6}.quote-ack input{width:20px!important;flex-shrink:0;margin-top:4px}.quote-trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}#okmsg{overflow-wrap:anywhere}#quote-new{margin-top:12px}.quote-fields:disabled{opacity:.8}